Comb



FIG. 1 is a front elevational view of a comb showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is an cross-sectional view through 3-3′ of FIG. 1; and,

FIG. 4 is an side elevational view thereof. 

CLAIM The ornamental design for a comb, as shown and described. 